The Serpent SER440135 is a purpose-built Li-ion battery pack for the Mini Spyder MT platform. It supplies the rated 7.4V nominal voltage and 1500mAh capacity to handle standard runs in the Mini Spyder MT (SER440001) RTR EP configuration without requiring changes to the stock electronics layout.
Compatibility is focused: use this pack only where the chassis and electronics expect a 7.4V Li-ion 1500mAh source as identified by the Mini Spyder MT model code. Before swapping packs, check the vehicle's battery bay and mounting clearances against Serpent's published pack dimensions.
In tuning terms, pack capacity and voltage influence run time and voltage sag under load, which affects throttle feel and thermal stress on the ESC and motor. Monitor pack temperature and voltage during initial runs to confirm behaviour in your setup.
Use the SER440135 as a direct battery option for Mini Spyder MT owners seeking the stated 7.4V, 1500mAh Li-ion specification; verify fit and charging method before regular use.
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